Davydov Splitting of the ${}^{2}E$ Lines in Antiferromagnetic ${Cr}_{2}$ $O_{3}$

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13 February 1967

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 18 (7) , 237-239
https://doi.org/10.1103/physrevlett.18.237

Abstract

This Letter reports the observation of a Davydov splitting in the optical absorption spectrum of

{Cr}_{2}

O_{3}

. In zero external field, a transition to only one level of the Davydov pair is observed. With

H

parallel to the

c

axis, an additional line having a field-dependent absorption appears. The extrapolated zero-field splitting is 3.75(±0.25)

{cm}^{- 1}

.

Keywords

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